FIELD: electric engineering. SUBSTANCE: device has adaptive filter, oscillator and amplitude-phase corrector. Adaptive filter has setting unit, which output bus is connected to setting inputs of corrector which output bus serves as output bus of device. Spectral analyzer, harmonic components oscillator, subtraction unit, computing unit, solving unit, logarithmic unit are introduced to accomplish the goal of invention. First output bus serves for output of complex amplitudes of all harmonic components from input signal, second and third output buses serve for output of complex frequencies and complex factors. EFFECT: increased functional capabilities. 2 dwg
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